Force-feed lubricator.



No. 784,788. PATENTED MAR. 14, 1905.

C. J. GUSTAPSON. v FORGE FEED LUBRIGATOR.

APPLICATION FILED JUNE 11.1904.

Inventor Witnesw 1g, b y

' Httornegs UNITED STATES Patented/March 14, 1905.

PATENT OFFICE. l

FORCE-FEED LUBRICATOR. 4,-

SPECIFICATION forming part of Letters Patent N 0,784,788', dated March14, 1905. Appncanon'iiiea Jun@ 11,1904. serial No. 212,143.

T o all whom t may concern:

Be it known that 1, CHARLES JACOB GUS- TAFsoN, a citizen of the UnitedStates, residing at Chattanooga, in the county of Hamilton and State ofTennessee, have invented a new and useful F orce-Feed Lubricator, ofwhich the following is a specification.

The invention relates to force-feed lubricators, and has for itsprincipal object to provide a novel means for forcing a lubricant intothe oil-channels of journal-boxes and other portions of machinery, cars,and the like.

A further object of the invention is to provide a novel form offorce-feed lubricator in which provision is made for discharging1 apredetermined quantity of oil to each portion of the device to belubricated-as, for instance, in oiling the journals of mine-cars andother vehicles each of the journals will 'receive precisely the samequantity of lubricant.

A still further object of the invention is to provide a novel form off0rce-feed lubricator which may be attached to an ordinary form ofoil-receptacle and readilyT carried about from place to placeduring thedlubricating operation.

With these and other objectsi in view, as will more fully hereinafterappear, the invention consists in the novel construction and arrangementof parts 'hereinafter fully described, illustrated in the accompanyingdrawings, and particularly pointed out. in the ap pended claims. itbeing understood that va-.

rious changes in the form, proportions, size, and minor details of thestructure may be made without departing from the spirit or sacrificingany of the advantages of the invention.

In the drawings, Figure 1 is a longitudinal sectional elevation of aforce-feed lubricator` constructed in accordance with the invention.Fig. 2 is a similar view of a portion of the same with the parts indifferent position. Fig.

3 is a transverse sectional elevation of a por tion of the hollow Fig.2.

Similar numerals of reference are employed to indicate correspondingparts throughout the several figures of the drawings. i

plunger-on the line 3 3 of 10, normally held to its seat by a coiled Thelubricator-receptaclel is inthe form of a metallic casing whichpreferably is provided with a lhandle 2 for convenience in carrying itfrom place to place, and in the up-l of the threaded portion of acylindrical casing 6, that extends for some distance Within the casingand has a projecting flange orcollar 7 per portion of the receptacle isa illingwith a non-circular face for engagement by a wrench or similartool for screwing the casing 6 into position. At the inner end of thecasing 6 is an inturned ange 8, having a valve-seat 9, against whichtits a disk valve compression-spring 11.

Arranged within the cylindrical casing 6 is a loosely-ttting plunger 12,having at its inner end an annular liange 13, that is provided with aplurality of notches or recesses 14. in order to permit the free passageof the oil. The plunger 12 tits within a stuliing-,boxvnut 15, that hasa forwardprojecting annular flange 16,'forming a guide for the outerportion of the plunger. The nut screws on the outer threadedy end of thecasing 6, and be-4 tween the end of the case and the nut-'is a`packing-ring 17, formed ofv yieldable-material so arranged as toprevent the leakage, of

oil 4around the exterior of the plunger, and4 this packingering,furthermore, forms a'seat or cushion for checking outward movement ofthe plunger. The packing-ring receives the impact gof the angevl, andany oil that may accumulate between the iange and ring is free to passrearward through the notches 14 to the interior of the casing. j

The hollow plunger 12 is provided at its outer end with a vvalve-seatfor .the reception of a disk valve 18, the stem of which is guidedWithin the bore of the plunger, and against the outer face of the valvepresses a` compressionspring 19, that is held within a nozzle member 20,having a threaded connection with the end of the plunger 12.

Between the inner end of the casing 6 and the similar end of the plunger12 is a strong compression-spring 21, that normally tends to force thenozzle outward to the position illustrated in Fig. 1, and during thisoutward movement the pressure of oil in the casing will open the valve10 and the oil will flow freely to the interior of the casing and thehollow plunger, sothat all parts will fill with oil when the nozzle isin the position shown. The nozzle is then applied inside against theoil-hole in a wheel-hub or other point to be lubricated and pressure isapplied'for forcing the nozzle rearward, or the nozzle may remainstationary while the receptacle and all of the connected parts is movedforward. This pressure serves to close the valve 10 and open the valve18, the oil within the casing 6 and the hollow plunger heilig forcedoutward through the nozzle to the point to belubricatcd. This Yoperationmay be repeated as often as necessary; but for ordinary purposes 'asingle application will suffice, and each part lubricated will thereforereceive the same measured quantity of oil.

Having thus described the invention, what is claimed is.

1. ln a lubricating apparatus, an oil-recep- Y tacle, a casingprojecting thereinto and having a valved inlet for the passage ol" theoil, a stuing-box nut at the outer end of the casing, a hollow plungerguided by the casing and extending through the nut, a spring tending toforce the plunger outward from the casing, a spring-closed valve at theouter end of the/plunger, and a chambered nozzle secured to the end ot'the plunger the chamber serving to contain the closing-spring of theouter Valve.

refines notched flange, a valve for closing the outlet from the plunger,and a nozzle member secured to the plunger and surrounding the valve.

3. 1n a lubricator, the combination with an oil-receptacle, ofy aninternally-threaded flanged collarsecured thereto, a casing having athreaded connection with the collar and provided at its inner end with aspring-closed inlet-valve, a hollow plunger guided within the casing andprovided with a notched flange portion, a spring disposed between theinner ends of the casing and plunger and tending to force the latteroutward, a'stutiing-box nut having a threaded connection with the outerportion of the casing and provided with a forwardly-extending annularflange serving as a guide for the plunger, a washer held in place by thenut and forming a cushion for engagement by the notched ange, anoutlet-valve at the outlet end of the plunger, a nozzle member having athreaded connection with the outer 'end of the plungerA and surroundingthe valve, and a 'coiled compression-spring arranged between the nozzleand the outletvalve, substantially as specified.

1n testimony that I, claim the foregoing as my own I have hereto alixedmy signature in the presence of two witnesses.

b CHARLES JACOB GUSTAFSN.

Witnesses:

E. A. S. GUs'rAFsoN, W. H. DEWITT.

